TP-Link TL-ER5120 TL-ER5120 User Guide - Page 9

-4-

Chapter 2 Introduction

Thanks for choosing the Gigabit Load Balance Broadband Router TL-ER5120.

2.1

Overview of the Router

The Gigabit Load Balance Broadband Router TL-ER5120 from TP-LINK possesses excellent data

processing capability and multiple powerful functions including Load Balance, Access Control,

Bandwidth Control, Session Limit, IM/P2P Blocking, PPPoE Server and so on, which consumedly

meet the needs of small and medium enterprise, hotels and communities with volumes of users

demanding a efficient and easy-to-manage network with high security.

z

Powerful Data Processing Capability

+ Built-in MIPS64 network processor and 128MB DDRII high-speed RAM allows the stability and

reliability for operation.

z

Online Behavior Management

+ Complete Functions of Access Rules can allow managers to select the network service levels to

block or allow applications of FTP downloading, Email, Web browsing and so on.

+ Deploying One-Click restricting of IM/P2P applications to save time & energy while reserving

exceptional groups for certain users.

+ Supporting URL Filtering to prevent potential hazards from visiting the malicious Web sites.

z

Powerful Firewall

+ Supporting One-Click IP-MAC Binding to avoid ARP spoofing and guarantee a network without

stagnation.

+ Featured Attack Defense to protect the network from a variety of flood attack and packet

anomaly attack.

+ Possessing MAC Filtering function to block the access of illegal hosts.

z

Flexible Traffic Control

+ Featured Bandwidth Control with flexible bandwidth management to automatically control the

bandwidth of the host in bi-direction to avoid bandwidth over occupation, as well as optimize

bandwidth usage.

+ Supporting Session Limit to avoid the complaint of a few people to force whole sessions.

z

Multi-WAN Ports

+ Providing three adjustable 10/100/1000M WAN/LAN ports for users to configure the amount of

WAN ports based on need and connect multiple Internet lines for bandwidth expansion.

+ Supporting multiple Load Balance modes, including Bandwidth Based Balance Routing,

Application Optimized Routing, and Policy Routing to optimize bandwidth usage.

Section	Page
Package Contents	6
Chapter 1 About this Guide	7
1.1 Intended Readers	7
1.2 Conventions	7
1.3 Overview of this Guide	7
Chapter 2 Introduction	9
2.1 Overview of the Router	9
2.2 Features	10
2.3 Appearance	11
2.3.1 Front Panel	11
2.3.2 Rear Panel	12
Chapter 3 Configuration	14
3.1 Network	14
3.1.1 Status	14
3.1.2 System Mode	15
3.1.3 WAN	18
3.1.3.1 WAN Mode	18
3.1.3.2 WAN1	19
3.1.4 LAN	36
3.1.4.1 LAN	36
3.1.4.2 DHCP	37
3.1.4.3 DHCP Client	38
3.1.4.4 DHCP Reservation	38
3.1.5 DMZ	40
3.1.5.1 DMZ	40
3.1.6 MAC Address	41
3.1.7 Switch	43
3.1.7.1 Statistics	43
3.1.7.2 Port Mirror	44
3.1.7.3 Rate Control	46
3.1.7.4 Port Config	47
3.1.7.5 Port Status	48
3.1.7.6 Port VLAN	49
3.2 User Group	49
3.2.1 Group	50
3.2.2 User	50
3.2.3 View	51
3.3 Advanced	52
3.3.1 NAT	52
3.3.1.1 NAT Setup	52
3.3.1.2 One-to-One NAT	53
3.3.1.3 Multi-Nets NAT	54
3.3.1.4 Virtual Server	57
3.3.1.5 Port Triggering	58
3.3.1.6 ALG	59
3.3.2 Traffic Control	60
3.3.2.1 Setup	60
3.3.2.2 Bandwidth Control	62
3.3.3 Session Limit	64
3.3.3.1 Session Limit	64
3.3.3.2 Session List	65
3.3.4 Load Balance	65
3.3.4.1 Configuration	65
3.3.4.2 Policy Routing	66
3.3.4.3 Link Backup	67
3.3.4.4 Protocol	69
3.3.5 Routing	70
3.3.5.1 Static Route	70
3.3.5.2 RIP	72
3.3.5.3 Route Table	74
3.4 Firewall	75
3.4.1 Anti ARP Spoofing	75
3.4.1.1 IP-MAC Binding	75
3.4.1.2 ARP Scanning	77
3.4.1.3 ARP List	78
3.4.2 Attack Defense	78
3.4.3 MAC Filtering	80
3.4.4 Access Control	81
3.4.4.1 URL Filtering	81
3.4.4.2 Web Filtering	83
3.4.4.3 Access Rules	83
3.4.4.4 Service	86
3.4.5 App Control	87
3.4.5.1 Control Rules	87
3.4.5.2 Database	89
3.5 Services	89
3.5.1 PPPoE Server	89
3.5.1.1 General	90
3.5.1.2 IP Address Pool	91
3.5.1.3 Account	92
3.5.1.4 Exceptional IP	94
3.5.1.5 List of Account	95
3.5.2 E-Bulletin	95
3.5.3 Dynamic DNS	97
3.5.3.1 DynDNS	98
3.5.3.2 No-IP	99
3.5.3.3 PeanutHull	100
3.5.3.4 Comexe	101
3.5.4 UPnP	102
3.6 Maintenance	103
3.6.1 Admin Setup	103
3.6.1.1 Administrator	103
3.6.1.2 Login Parameter	104
3.6.1.3 Remote Management	106
3.6.2 Management	106
3.6.2.1 Factory Defaults	106
3.6.2.2 Export and Import	107
3.6.2.3 Reboot	107
3.6.2.4 Firmware Upgrade	108
3.6.3 Statistics	108
3.6.3.1 Interface Traffic Statistics	108
3.6.3.2 IP Traffic Statistics	109
3.6.4 Diagnostics	110
3.6.4.1 Diagnostics	110
3.6.4.2 Online Detection	112
3.6.5 Time	113
3.6.6 Logs	114
Chapter 4 Application	116
4.1 Network Requirements	116
4.2 Configurations	116
4.2.1 Internet Setting	116
4.2.1.1 System Mode	117
4.2.1.2 WAN Mode	117
4.2.1.3 Internet Connection	117
4.2.1.4 Link Backup	118
4.2.2 Network Management	119
4.2.2.1 User Group	119
4.2.2.2 App Control	120
4.2.2.3 Bandwidth Control	121
4.2.2.4 Session Limit	122
4.2.3 Network Security	123
4.2.3.1 LAN ARP Defense	123
4.2.3.2 WAN ARP Defense	125
4.2.3.3 Attack Defense	125
4.2.3.4 Traffic Monitoring	126
Chapter 5 CLI	129
5.1 Configuration	129
5.2 Interface Mode	132
5.3 Online Help	133
5.4 Command Introduction	134
5.4.1 ip	135
5.4.2 ip-mac	135
5.4.3 sys	135
5.4.4 user	137
5.4.5 history	138

TP-Link TL-ER5120 TL-ER5120 User Guide - Page 9

Introduction - processor

Page 9 highlights